X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;ds=sidebyside;f=utils.py;h=59df9f3c36164a066320857fb9ef6e315003c236;hb=6d72ae4bca15c0ed410798e62d3e367cf7abcdb6;hp=1c00a1cbb9ec87bede691846e265974e07e955c7;hpb=daaee3bcc68b5702b5cea8f14dfa6c10cf304ff0;p=dak.git

diff --git a/utils.py b/utils.py
index 1c00a1cb..59df9f3c 100644
--- a/utils.py
+++ b/utils.py
@@ -1,6 +1,6 @@
 # Utility functions
-# Copyright (C) 2000  James Troup <james@nocrew.org>
-# $Id: utils.py,v 1.26 2001-06-10 16:35:03 troup Exp $
+# Copyright (C) 2000, 2001  James Troup <james@nocrew.org>
+# $Id: utils.py,v 1.30 2001-07-25 15:51:15 troup Exp $
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -45,6 +45,7 @@ cant_overwrite_exc = "Permission denied; can't overwrite existent file."
 file_exists_exc = "Destination file exists";
 send_mail_invalid_args_exc = "Both arguments are non-null.";
 sendmail_failed_exc = "Sendmail invocation failed";
+tried_too_hard_exc = "Tried too hard to find a free filename.";
 
 # Valid components; used by extract_component_from_section() because
 # it doesn't know about Conf from it's caller.  FIXME
@@ -57,7 +58,7 @@ valid_components = {
 
 ######################################################################################
 
-def open_file(filename, mode):
+def open_file(filename, mode='r'):
     try:
 	f = open(filename, mode);
     except IOError:
@@ -215,7 +216,7 @@ def build_file_list(changes, dsc):
     if format != "":
 	format = float(format)
     if dsc == "" and (format < 1.5 or format > 2.0):
-	raise nk_format_exc, changes["format"];
+	raise nk_format_exc, format;
 
     # No really, this has happened.  Think 0 length .dsc file.
     if not changes.has_key("files"):
@@ -455,12 +456,12 @@ def cc_fix_changes (changes):
 def changes_compare (a, b):
     try:
         a_changes = parse_changes(a, 0)
-    except changes_parse_error_exc, line:
+    except:
         return -1;
 
     try:
         b_changes = parse_changes(b, 0)
-    except changes_parse_error_exc, line:
+    except:
         return 1;
     
     cc_fix_changes (a_changes);
@@ -496,3 +497,15 @@ def changes_compare (a, b):
     return cmp(a, b);
 
 ################################################################################
+
+def find_next_free (dest, too_many=100):
+    extra = 0;
+    orig_dest = dest;
+    while os.path.exists(dest) and extra < too_many:
+        dest = orig_dest + '.' + repr(extra);
+        extra = extra + 1;
+    if extra >= too_many:
+        raise tried_too_hard_exc;
+    return dest;
+    
+################################################################################